Attaching bows to keys



UNITED sTATEs PATENT oEEicE.

E. L. GAYLORD, OF TERRYSVILLE, CONNECTICUT.

ATTACI-IING- BOWS TO KEYS.

Specicaton of Letters Patent No. 28,466, dated May 29, 1860.

To all whom it may concern:

' Be it known that I, E. L. GAYLORD, of Terrysville, in the county of Litchfield and State of Connecticut, have invented a new and Improved Mode of Attaching Bows to Keys; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the annexed drawings, making a part of this specification, in which- Figure 1 is an external view of a key having its bow partly bisected and attached to it according to my invention. Fig. 2 is a view of the bow bisected longitudinally and detached from the arbor of the key the arbor not being bisected. Fig. 3 is a view showing the bow bisected and secured in a clamp and the arbor of the key fitted in a socket and having its end driven into the recess of the bar. Fig. it is a view showing the bow and socket bisected, and the end of the arbor secured in the socket.

Similar letters of reference indicate corresponding parts in the several figures.

In the construction of iron keys for locks ornamental bows are frequently attached, the saine being cast of brass or other metal that may be readily electroplated, and forming an economical ornament. VThese bows have hitherto been most generally attached to keys by casting them on the ends of the arbors, but the contact of the melted metal with the iron causes the castings to be blown in many cases thereby greatly deteriorating the work and commercially reducing them in value. The brazing of the bows to the arbors, which might be done, would be attended with too much cost, as considerable manipulation would be required to perform thework.

The within described invention consists in attaching key-bows to their arbors by upsetting the metal of the bows around a head or knob on the end of the arbor, substantially as hereinafter described, whereby a iirin and secure connection is not only obtained, but one that may be more expeditiously and economically made than hitherto.

To enable those skill-ed in the art to fully understand and construct my invention I will proceed to describe it.

A represents an iron arbor of a key b, being a bit attached. At the end of the arbor opposite to the end where the bit is attached there is formed a knob or head c. This knob or head may be described as being of conical form with a recess cl, formed in the arbor at the base of the cone, as shown clearly in all the drawings. The knob or head c, may be turned or cut on the end of the arbor by any suitable device. lVhen the knob or head is formed on the arbor A, it is cut by means of a die so as to have a longitudinally grooved surface e, at its greatest diameter, as shown in all the figures.

B represents a key-bow which is cast of any ornamental pattern and provided with a socket f, of conical form, as shown clearly in Figs. 2 and 3. This socket is made of such dimensions that it will just snugly receive the knob or head c, when the latter is driven into it. This driving of the knob or head c, of the arbor into the socket may be effected by placing the bow B, in a clamp or vise C, and inserting the arbor A, in a hollow slotted handle D, the bit b, projecting through the slot of the handle, and the lower end of the handle fitting in the top of the clamp or vise C, and resting on the edge of socket f. The bit Z), of the arbor projects through the slot of the handle and by striking the bit of the arbor the head or knob c, may be driven into the socket f, as shown clearly in Fig. 3, or the knob may be driven into the socket by striking on the end of the arbor before the .latter is inserted in the handle. The forcing or driving of the knob or head c, into the socket j', causes the grooves e, to be filled by the metal of the socket, and consequently the bow will be prevented from turning on the arbor. The end of the handle D, is then struck and the edge or outer part of the socket j', will in consequence be upset and theV recess d, at the inner end of the knob or head c, will be fitted and the socket f, made to fit perfectly the outer surface of the knob or head, as shown clearly in Fig. 4:. It will be seen, of course, that the upsetting of the bow B, at the end of socket 7L', causing the latter to conform to and perfectly incase the knob or head c, prevents the arbor and bow being separated in a longitudinal direction, and as the grooves e, in the knob or head c, in consequence of being filled by the metal at the sides of the socket in driving the hub or head into the same, prevents the turning of the bow or arbor, a firm and desirable connection of the bow and arbor will be obtained.

I do not confine myself to the precise mode herein shown ofv holding the parts while being connected together, as, for instance, the .rlamp or vise C, and handle D,

10 formed on the arbors, grooved longitudinally and driven snugly into sockets f, of the bows, Vthe parts of the bows at the ends of the socket beingv then upset to make the sockets snugly incase the knobs or heads, substantially as described.

E. L. GAYLORD.

Witnesses:

1. H. ADAMS, JAMES TERRY. 

